Add branch release tasks

Gemfile

@@ -1,4 +1,5 @@
 source 'https://rubygems.org'
 
 gem "awesome_spawn", ">=1.5"
+gem "rake"
 gem "rspec",         "~>3.6"

Rakefile

@@ -0,0 +1 @@
+Dir.glob(File.expand_path("lib/tasks/*", __dir__)).sort.each { |f| load f }

lib/tasks/release.rake

@@ -0,0 +1,152 @@
+namespace :release do
+  desc "Tasks to run on a new branch when a new branch is created"
+  task :new_branch do
+    require 'pathname'
+
+    branch = ENV["RELEASE_BRANCH"]
+    if branch.nil? || branch.empty?
+      STDERR.puts "ERROR: You must set the env var RELEASE_BRANCH to the proper value."
+      exit 1
+    end
+
+    current_branch = `git rev-parse --abbrev-ref HEAD`.chomp
+    if current_branch == "master"
+      STDERR.puts "ERROR: You cannot do new branch tasks from the master branch."
+      exit 1
+    end
+
+    root = Pathname.new(__dir__).join("../..")
+
+    branch_number = branch[0].ord - 96
+    rpm_repo_name = "#{branch_number}-#{branch}"
+
+    # Modify README
+    readme = root.join("README.md")
+    content = readme.read
+    readme.write(content.sub(/^(default: )\w+/, "\\1latest-#{branch}"))
+
+    # Modify operator README
+    operator_readme = root.join("manageiq-operator", "README.md")
+    content = operator_readme.read
+    operator_readme.write(content.gsub(%r{(/manageiq-operator:)\w+}, "\\1latest-#{branch}"))
+
+    # Modify CR
+    cr = root.join("manageiq-operator", "pkg", "helpers", "miq-components", "cr.go")
+    content = cr.read
+    cr.write(content.sub(/(cr\.Spec\.OrchestratorImageTag.+?\n\s+return ")\w+(")/, "\\1latest-#{branch}\\2"))
+
+    # Modify types
+    types = root.join("manageiq-operator", "pkg", "apis", "manageiq", "v1alpha1", "manageiq_types.go")
+    content = types.read
+    types.write(content.sub(/(tag used for the orchestrator and worker deployments \(default: )\w+(\))/, "\\1latest-#{branch}\\2"))
+
+    # Modify deploy operator.yaml
+    deploy_operator = root.join("manageiq-operator", "deploy", "operator.yaml")
+    content = deploy_operator.read
+    deploy_operator.write(content.sub(%r{(docker.io/manageiq/manageiq-operator:)\w+}, "\\1latest-#{branch}"))
+
+    # Modify deploy CRD
+    deploy_crd = root.join("manageiq-operator", "deploy", "crds", "manageiq.org_manageiqs_crd.yaml")
+    content = deploy_crd.read
+    deploy_crd.write(content.sub(/(tag used for the orchestrator and worker deployments\n\s+\(default: )\w+(\))/, "\\1latest-#{branch}\\2"))
+
+    # Modify deploy CSV
+    deploy_csv = root.join("manageiq-operator", "deploy", "olm-catalog", "manageiq-operator", "manifests", "manageiq-operator.clusterserviceversion.yaml")
+    content = deploy_csv.read
+    deploy_csv.write(content.sub(%r{(docker.io/manageiq/manageiq-operator:)\w+}, "\\1latest-#{branch}"))
+
+    # Modify catalog CRD
+    catalog_crd = root.join("manageiq-operator", "deploy", "olm-catalog", "manageiq-operator", "manifests", "manageiq.org_manageiqs_crd.yaml")
+    content = catalog_crd.read
+    catalog_crd.write(content.sub(/(tag used for the orchestrator and worker deployments\n\s+\(default: )\w+(\))/, "\\1latest-#{branch}\\2"))
+
+    # Modify bin/build
+    build_script = root.join("bin", "build")
+    content = build_script.read
+    content.sub!(/^(TAG=)\w+/, "\\1latest-#{branch}")
+    content.sub!(/(BUILD_REF:-)\w+(\})/, "\\1#{branch}]\\2")
+    build_script.write(content)
+
+    # Modify bin/remove_images
+    remove_script = root.join("bin", "remove_images")
+    content = remove_script.read
+    remove_script.write(content.sub(/^(TAG=)\w+/, "\\1latest-#{branch}"))
+
+    # Modify base Dockerfile
+    base_dockerfile = root.join("images", "manageiq-base", "Dockerfile")
+    content = base_dockerfile.read
+    content.sub!(/^(ARG BUILD_REF=)\w+/, "\\1#{branch}")
+    content.sub!(%r{(/rpm.manageiq.org/release/)\d+-\w+}, "\\1#{rpm_repo_name}")
+    content.sub!(%r{(/el8/noarch/manageiq-release-)\d+\.\d+-\d+}, "\\1#{branch_number}.0-1")
+    content.sub!(/(manageiq-)\d+-\w+(-nightly)/, "\\1#{rpm_repo_name}\\2")
+    base_dockerfile.write(content)
+
+    # Modify Dockerfiles
+    dockerfiles = %w[manageiq-base-worker manageiq-webserver-worker manageiq-ui-worker manageiq-orchestrator].map do |worker|
+      root.join("images", worker, "Dockerfile").tap do |dockerfile|
+        content = dockerfile.read
+        dockerfile.write(content.sub(/^(ARG FROM_TAG=)\w+/, "\\1latest-#{branch}"))
+      end
+    end
+
+    # Commit
+    files_to_update = [readme, operator_readme, cr, types, deploy_operator, deploy_crd, deploy_csv, catalog_crd, build_script, remove_script, base_dockerfile, *dockerfiles]
+    exit $?.exitstatus unless system("git add #{files_to_update.join(" ")}")
+    exit $?.exitstatus unless system("git commit -m 'Changes for new branch #{branch}'")
+
+    puts
+    puts "The commit on #{current_branch} has been created."
+    puts "Run the following to push to the upstream remote:"
+    puts
+    puts "\tgit push upstream #{current_branch}"
+    puts
+  end
+
+  desc "Tasks to run on the master branch when a new branch is created"
+  task :new_branch_master do
+    require 'pathname'
+
+    branch = ENV["RELEASE_BRANCH"]
+    if branch.nil? || branch.empty?
+      STDERR.puts "ERROR: You must set the env var RELEASE_BRANCH to the proper value."
+      exit 1
+    end
+
+    next_branch = ENV["RELEASE_BRANCH_NEXT"]
+    if next_branch.nil? || next_branch.empty?
+      STDERR.puts "ERROR: You must set the env var RELEASE_BRANCH_NEXT to the proper value."
+      exit 1
+    end
+
+    current_branch = `git rev-parse --abbrev-ref HEAD`.chomp
+    if current_branch != "master"
+      STDERR.puts "ERROR: You cannot do master branch tasks from a non-master branch (#{current_branch})."
+      exit 1
+    end
+
+    root = Pathname.new(__dir__).join("../..")
+
+    next_branch_number = next_branch[0].ord - 96
+    rpm_repo_name = "#{next_branch_number}-#{next_branch}"
+
+    # Modify base Dockerfile
+    base_dockerfile = root.join("images", "manageiq-base", "Dockerfile")
+    content = base_dockerfile.read
+    content.sub!(%r{(/rpm.manageiq.org/release/)\d+-\w+}, "\\1#{rpm_repo_name}")
+    content.sub!(%r{(/el8/noarch/manageiq-release-)\d+\.\d+-\d+}, "\\1#{next_branch_number}.0-1")
+    content.sub!(/(manageiq-)\d+-\w+(-nightly)/, "\\1#{rpm_repo_name}\\2")
+    base_dockerfile.write(content)
+
+    # Commit
+    files_to_update = [base_dockerfile]
+    exit $?.exitstatus unless system("git add #{files_to_update.join(" ")}")
+    exit $?.exitstatus unless system("git commit -m 'Changes after new branch #{branch}'")
+
+    puts
+    puts "The commit on #{current_branch} has been created."
+    puts "Run the following to push to the upstream remote:"
+    puts
+    puts "\tgit push upstream #{current_branch}"
+    puts
+  end
+end